Add libsimplewebm and libwebm thirdparty libraries

thirdparty/README.md

@@ -95,6 +95,12 @@ Files extracted from upstream source:
 - `scripts/pnglibconf.h.prebuilt` as `pnglibconf.h`
 
 
+## libsimplewebm
+
+- Upstream: https://github.com/zaps166/libsimplewebm
+- License: MIT, BSD-3-Clause
+
+
 ## libvorbis
 
 - Upstream: https://www.xiph.org/vorbis

thirdparty/libsimplewebm/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2016 Błażej Szczygieł
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

thirdparty/libsimplewebm/OpusVorbisDecoder.cpp

@@ -0,0 +1,224 @@
+/*
+	MIT License
+
+	Copyright (c) 2016 Błażej Szczygieł
+
+	Permission is hereby granted, free of charge, to any person obtaining a copy
+	of this software and associated documentation files (the "Software"), to deal
+	in the Software without restriction, including without limitation the rights
+	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+	copies of the Software, and to permit persons to whom the Software is
+	furnished to do so, subject to the following conditions:
+
+	The above copyright notice and this permission notice shall be included in all
+	copies or substantial portions of the Software.
+
+	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+	SOFTWARE.
+*/
+
+#include "OpusVorbisDecoder.hpp"
+
+#include <vorbis/codec.h>
+#include <opus/opus.h>
+
+#include <string.h>
+
+struct VorbisDecoder
+{
+	vorbis_info info;
+	vorbis_dsp_state dspState;
+	vorbis_block block;
+	ogg_packet op;
+
+	bool hasDSPState, hasBlock;
+};
+
+/**/
+
+OpusVorbisDecoder::OpusVorbisDecoder(const WebMDemuxer &demuxer) :
+	m_vorbis(NULL), m_opus(NULL),
+	m_numSamples(0),
+	m_channels(demuxer.getChannels())
+{
+	switch (demuxer.getAudioCodec())
+	{
+		case WebMDemuxer::AUDIO_VORBIS:
+			if (openVorbis(demuxer))
+				return;
+			break;
+		case WebMDemuxer::AUDIO_OPUS:
+			if (openOpus(demuxer))
+				return;
+			break;
+		default:
+			return;
+	}
+	close();
+}
+OpusVorbisDecoder::~OpusVorbisDecoder()
+{
+	close();
+}
+
+bool OpusVorbisDecoder::isOpen() const
+{
+	return (m_vorbis || m_opus);
+}
+
+bool OpusVorbisDecoder::getPCMS16(WebMFrame &frame, short *buffer, int &numOutSamples)
+{
+	if (m_vorbis)
+	{
+		m_vorbis->op.packet = frame.buffer;
+		m_vorbis->op.bytes = frame.bufferSize;
+
+		if (vorbis_synthesis(&m_vorbis->block, &m_vorbis->op))
+			return false;
+		if (vorbis_synthesis_blockin(&m_vorbis->dspState, &m_vorbis->block))
+			return false;
+
+		const int maxSamples = getBufferSamples();
+		int samplesCount, count = 0;
+		float **pcm;
+		while ((samplesCount = vorbis_synthesis_pcmout(&m_vorbis->dspState, &pcm)))
+		{
+			const int toConvert = samplesCount <= maxSamples ? samplesCount : maxSamples;
+			for (int c = 0; c < m_channels; ++c)
+			{
+				float *samples = pcm[c];
+				for (int i = 0, j = c; i < toConvert; ++i, j += m_channels)
+				{
+					int sample = samples[i] * 32767.0f;
+					if (sample > 32767)
+						sample = 32767;
+					else if (sample < -32768)
+						sample = -32768;
+					buffer[count + j] = sample;
+				}
+			}
+			vorbis_synthesis_read(&m_vorbis->dspState, toConvert);
+			count += toConvert;
+		}
+
+		numOutSamples = count;
+		return true;
+	}
+	else if (m_opus)
+	{
+		const int samples = opus_decode(m_opus, frame.buffer, frame.bufferSize, buffer, m_numSamples, 0);
+		if (samples >= 0)
+		{
+			numOutSamples = samples;
+			return true;
+		}
+	}
+	return false;
+}
+
+bool OpusVorbisDecoder::openVorbis(const WebMDemuxer &demuxer)
+{
+	size_t extradataSize = 0;
+	const unsigned char *extradata = demuxer.getAudioExtradata(extradataSize);
+
+	if (extradataSize < 3 || !extradata || extradata[0] != 2)
+		return false;
+
+	size_t headerSize[3] = {0};
+	size_t offset = 1;
+
+	/* Calculate three headers sizes */
+	for (int i = 0; i < 2; ++i)
+	{
+		for (;;)
+		{
+			if (offset >= extradataSize)
+				return false;
+			headerSize[i] += extradata[offset];
+			if (extradata[offset++] < 0xFF)
+				break;
+		}
+	}
+	headerSize[2] = extradataSize - (headerSize[0] + headerSize[1] + offset);
+
+	if (headerSize[0] + headerSize[1] + headerSize[2] + offset != extradataSize)
+		return false;
+
+	ogg_packet op[3];
+	memset(op, 0, sizeof op);
+
+	op[0].packet = (unsigned char *)extradata + offset;
+	op[0].bytes = headerSize[0];
+	op[0].b_o_s = 1;
+
+	op[1].packet = (unsigned char *)extradata + offset + headerSize[0];
+	op[1].bytes = headerSize[1];
+
+	op[2].packet = (unsigned char *)extradata + offset + headerSize[0] + headerSize[1];
+	op[2].bytes = headerSize[2];
+
+	m_vorbis = new VorbisDecoder;
+	m_vorbis->hasDSPState = m_vorbis->hasBlock = false;
+	vorbis_info_init(&m_vorbis->info);
+
+	/* Upload three Vorbis headers into libvorbis */
+	vorbis_comment vc;
+	vorbis_comment_init(&vc);
+	for (int i = 0; i < 3; ++i)
+	{
+		if (vorbis_synthesis_headerin(&m_vorbis->info, &vc, &op[i]))
+		{
+			vorbis_comment_clear(&vc);
+			return false;
+		}
+	}
+	vorbis_comment_clear(&vc);
+
+	if (vorbis_synthesis_init(&m_vorbis->dspState, &m_vorbis->info))
+		return false;
+	m_vorbis->hasDSPState = true;
+
+	if (m_vorbis->info.channels != m_channels || m_vorbis->info.rate != demuxer.getSampleRate())
+		return false;
+
+	if (vorbis_block_init(&m_vorbis->dspState, &m_vorbis->block))
+		return false;
+	m_vorbis->hasBlock = true;
+
+	memset(&m_vorbis->op, 0, sizeof m_vorbis->op);
+
+	m_numSamples = 4096 / m_channels;
+
+	return true;
+}
+bool OpusVorbisDecoder::openOpus(const WebMDemuxer &demuxer)
+{
+	int opusErr = 0;
+	m_opus = opus_decoder_create(demuxer.getSampleRate(), m_channels, &opusErr);
+	if (!opusErr)
+	{
+		m_numSamples = demuxer.getSampleRate() * 0.06 + 0.5; //Maximum frame size (for 60 ms frame)
+		return true;
+	}
+	return false;
+}
+
+void OpusVorbisDecoder::close()
+{
+	if (m_vorbis)
+	{
+		if (m_vorbis->hasBlock)
+			vorbis_block_clear(&m_vorbis->block);
+		if (m_vorbis->hasDSPState)
+			vorbis_dsp_clear(&m_vorbis->dspState);
+		vorbis_info_clear(&m_vorbis->info);
+		delete m_vorbis;
+	}
+	if (m_opus)
+		opus_decoder_destroy(m_opus);
+}

thirdparty/libsimplewebm/OpusVorbisDecoder.hpp

@@ -0,0 +1,63 @@
+/*
+	MIT License
+
+	Copyright (c) 2016 Błażej Szczygieł
+
+	Permission is hereby granted, free of charge, to any person obtaining a copy
+	of this software and associated documentation files (the "Software"), to deal
+	in the Software without restriction, including without limitation the rights
+	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+	copies of the Software, and to permit persons to whom the Software is
+	furnished to do so, subject to the following conditions:
+
+	The above copyright notice and this permission notice shall be included in all
+	copies or substantial portions of the Software.
+
+	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+	SOFTWARE.
+*/
+
+#ifndef OPUSVORBISDECODER_HPP
+#define OPUSVORBISDECODER_HPP
+
+#include "WebMDemuxer.hpp"
+
+struct VorbisDecoder;
+struct OpusDecoder;
+
+class OpusVorbisDecoder
+{
+	OpusVorbisDecoder(const OpusVorbisDecoder &);
+	void operator =(const OpusVorbisDecoder &);
+public:
+	OpusVorbisDecoder(const WebMDemuxer &demuxer);
+	~OpusVorbisDecoder();
+
+	bool isOpen() const;
+
+	inline int getBufferSamples() const
+	{
+		return m_numSamples;
+	}
+
+	bool getPCMS16(WebMFrame &frame, short *buffer, int &numOutSamples);
+
+private:
+	bool openVorbis(const WebMDemuxer &demuxer);
+	bool openOpus(const WebMDemuxer &demuxer);
+
+	void close();
+
+	VorbisDecoder *m_vorbis;
+	OpusDecoder *m_opus;
+	int m_numSamples;
+	int m_channels;
+
+};
+
+#endif // OPUSVORBISDECODER_HPP

thirdparty/libsimplewebm/VPXDecoder.cpp

@@ -0,0 +1,142 @@
+/*
+	MIT License
+
+	Copyright (c) 2016 Błażej Szczygieł
+
+	Permission is hereby granted, free of charge, to any person obtaining a copy
+	of this software and associated documentation files (the "Software"), to deal
+	in the Software without restriction, including without limitation the rights
+	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+	copies of the Software, and to permit persons to whom the Software is
+	furnished to do so, subject to the following conditions:
+
+	The above copyright notice and this permission notice shall be included in all
+	copies or substantial portions of the Software.
+
+	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+	SOFTWARE.
+*/
+
+#include "VPXDecoder.hpp"
+
+#include <vpx/vpx_decoder.h>
+#include <vpx/vp8dx.h>
+
+#include <stdlib.h>
+#include <string.h>
+
+VPXDecoder::VPXDecoder(const WebMDemuxer &demuxer, unsigned threads) :
+	m_ctx(NULL),
+	m_iter(NULL),
+	m_delay(0)
+{
+	if (threads > 8)
+		threads = 8;
+	else if (threads < 1)
+		threads = 1;
+
+	const vpx_codec_dec_cfg_t codecCfg = {
+		threads,
+		0,
+		0
+	};
+	vpx_codec_iface_t *codecIface = NULL;
+
+	switch (demuxer.getVideoCodec())
+	{
+		case WebMDemuxer::VIDEO_VP8:
+			codecIface = vpx_codec_vp8_dx();
+			break;
+		case WebMDemuxer::VIDEO_VP9:
+			codecIface = vpx_codec_vp9_dx();
+			m_delay = threads - 1;
+			break;
+		default:
+			return;
+	}
+
+	m_ctx = new vpx_codec_ctx_t;
+	if (vpx_codec_dec_init(m_ctx, codecIface, &codecCfg, m_delay > 0 ? VPX_CODEC_USE_FRAME_THREADING : 0))
+	{
+		delete m_ctx;
+		m_ctx = NULL;
+	}
+}
+VPXDecoder::~VPXDecoder()
+{
+	if (m_ctx)
+	{
+		vpx_codec_destroy(m_ctx);
+		delete m_ctx;
+	}
+}
+
+bool VPXDecoder::decode(const WebMFrame &frame)
+{
+	m_iter = NULL;
+	return !vpx_codec_decode(m_ctx, frame.buffer, frame.bufferSize, NULL, 0);
+}
+VPXDecoder::IMAGE_ERROR VPXDecoder::getImage(Image &image)
+{
+	IMAGE_ERROR err = NO_FRAME;
+	if (vpx_image_t *img = vpx_codec_get_frame(m_ctx, &m_iter))
+	{
+		if ((img->fmt & VPX_IMG_FMT_PLANAR) && !(img->fmt & (VPX_IMG_FMT_HAS_ALPHA | VPX_IMG_FMT_HIGHBITDEPTH)))
+		{
+			if (img->stride[0] && img->stride[1] && img->stride[2])
+			{
+				const int uPlane = !!(img->fmt & VPX_IMG_FMT_UV_FLIP) + 1;
+				const int vPlane =  !(img->fmt & VPX_IMG_FMT_UV_FLIP) + 1;
+
+				image.w = img->d_w;
+				image.h = img->d_h;
+				image.chromaShiftW = img->x_chroma_shift;
+				image.chromaShiftH = img->y_chroma_shift;
+
+				image.planes[0] = img->planes[0];
+				image.planes[1] = img->planes[uPlane];
+				image.planes[2] = img->planes[vPlane];
+
+				image.linesize[0] = img->stride[0];
+				image.linesize[1] = img->stride[uPlane];
+				image.linesize[2] = img->stride[vPlane];
+
+				err = NO_ERROR;
+			}
+		}
+		else
+		{
+			err = UNSUPPORTED_FRAME;
+		}
+	}
+	return err;
+}
+
+/**/
+
+#if 0
+
+static inline int ceilRshift(int val, int shift)
+{
+	return (val + (1 << shift) - 1) >> shift;
+}
+
+int VPXDecoder::Image::getWidth(int plane) const
+{
+	if (!plane)
+		return w;
+	return ceilRshift(w, chromaShiftW);
+}
+int VPXDecoder::Image::getHeight(int plane) const
+{
+	if (!plane)
+		return h;
+	return ceilRshift(h, chromaShiftH);
+}
+
+#endif

thirdparty/libsimplewebm/VPXDecoder.hpp

@@ -0,0 +1,80 @@
+/*
+	MIT License
+
+	Copyright (c) 2016 Błażej Szczygieł
+
+	Permission is hereby granted, free of charge, to any person obtaining a copy
+	of this software and associated documentation files (the "Software"), to deal
+	in the Software without restriction, including without limitation the rights
+	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+	copies of the Software, and to permit persons to whom the Software is
+	furnished to do so, subject to the following conditions:
+
+	The above copyright notice and this permission notice shall be included in all
+	copies or substantial portions of the Software.
+
+	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+	SOFTWARE.
+*/
+
+#ifndef VPXDECODER_HPP
+#define VPXDECODER_HPP
+
+#include "WebMDemuxer.hpp"
+
+struct vpx_codec_ctx;
+
+class VPXDecoder
+{
+	VPXDecoder(const VPXDecoder &);
+	void operator =(const VPXDecoder &);
+public:
+	class Image
+	{
+	public:
+#if 0
+		int getWidth(int plane) const;
+		int getHeight(int plane) const;
+#endif
+
+		int w, h;
+		int chromaShiftW, chromaShiftH;
+		unsigned char *planes[3];
+		int linesize[3];
+	};
+
+	enum IMAGE_ERROR
+	{
+		UNSUPPORTED_FRAME = -1,
+		NO_ERROR,
+		NO_FRAME
+	};
+
+	VPXDecoder(const WebMDemuxer &demuxer, unsigned threads = 1);
+	~VPXDecoder();
+
+	inline bool isOpen() const
+	{
+		return (bool)m_ctx;
+	}
+
+	inline int getFramesDelay() const
+	{
+		return m_delay;
+	}
+
+	bool decode(const WebMFrame &frame);
+	IMAGE_ERROR getImage(Image &image); //The data is NOT copied! Only 3-plane, 8-bit images are supported.
+
+private:
+	vpx_codec_ctx *m_ctx;
+	const void *m_iter;
+	int m_delay;
+};
+
+#endif // VPXDECODER_HPP

thirdparty/libsimplewebm/WebMDemuxer.cpp

@@ -0,0 +1,241 @@
+/*
+	MIT License
+
+	Copyright (c) 2016 Błażej Szczygieł
+
+	Permission is hereby granted, free of charge, to any person obtaining a copy
+	of this software and associated documentation files (the "Software"), to deal
+	in the Software without restriction, including without limitation the rights
+	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+	copies of the Software, and to permit persons to whom the Software is
+	furnished to do so, subject to the following conditions:
+
+	The above copyright notice and this permission notice shall be included in all
+	copies or substantial portions of the Software.
+
+	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+	SOFTWARE.
+*/
+
+#include "WebMDemuxer.hpp"
+
+#include "mkvparser/mkvparser.h"
+
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+
+WebMFrame::WebMFrame() :
+	bufferSize(0), bufferCapacity(0),
+	buffer(NULL),
+	time(0),
+	key(false)
+{}
+WebMFrame::~WebMFrame()
+{
+	free(buffer);
+}
+
+/**/
+
+WebMDemuxer::WebMDemuxer(mkvparser::IMkvReader *reader, int videoTrack, int audioTrack) :
+	m_reader(reader),
+	m_segment(NULL),
+	m_cluster(NULL), m_block(NULL), m_blockEntry(NULL),
+	m_blockFrameIndex(0),
+	m_videoTrack(NULL), m_vCodec(NO_VIDEO),
+	m_audioTrack(NULL), m_aCodec(NO_AUDIO),
+	m_isOpen(false),
+	m_eos(false)
+{
+	long long pos = 0;
+	if (mkvparser::EBMLHeader().Parse(m_reader, pos))
+		return;
+
+	if (mkvparser::Segment::CreateInstance(m_reader, pos, m_segment))
+		return;
+
+	if (m_segment->Load() < 0)
+		return;
+
+	const mkvparser::Tracks *tracks = m_segment->GetTracks();
+	const unsigned long tracksCount = tracks->GetTracksCount();
+	int currVideoTrack = -1, currAudioTrack = -1;
+	for (unsigned long i = 0; i < tracksCount; ++i)
+	{
+		const mkvparser::Track *track = tracks->GetTrackByIndex(i);
+		if (const char *codecId = track->GetCodecId())
+		{
+			if ((!m_videoTrack || currVideoTrack != videoTrack) && track->GetType() == mkvparser::Track::kVideo)
+			{
+				if (!strcmp(codecId, "V_VP8"))
+					m_vCodec = VIDEO_VP8;
+				else if (!strcmp(codecId, "V_VP9"))
+					m_vCodec = VIDEO_VP9;
+				if (m_vCodec != NO_VIDEO)
+					m_videoTrack = static_cast<const mkvparser::VideoTrack *>(track);
+				++currVideoTrack;
+			}
+			if ((!m_audioTrack || currAudioTrack != audioTrack) && track->GetType() == mkvparser::Track::kAudio)
+			{
+				if (!strcmp(codecId, "A_VORBIS"))
+					m_aCodec = AUDIO_VORBIS;
+				else if (!strcmp(codecId, "A_OPUS"))
+					m_aCodec = AUDIO_OPUS;
+				if (m_aCodec != NO_AUDIO)
+					m_audioTrack = static_cast<const mkvparser::AudioTrack *>(track);
+				++currAudioTrack;
+			}
+		}
+	}
+	if (!m_videoTrack && !m_audioTrack)
+		return;
+
+	m_isOpen = true;
+}
+WebMDemuxer::~WebMDemuxer()
+{
+	delete m_segment;
+	delete m_reader;
+}
+
+double WebMDemuxer::getLength() const
+{
+	return m_segment->GetDuration() / 1e9;
+}
+
+WebMDemuxer::VIDEO_CODEC WebMDemuxer::getVideoCodec() const
+{
+	return m_vCodec;
+}
+int WebMDemuxer::getWidth() const
+{
+	return m_videoTrack->GetWidth();
+}
+int WebMDemuxer::getHeight() const
+{
+	return m_videoTrack->GetHeight();
+}
+
+WebMDemuxer::AUDIO_CODEC WebMDemuxer::getAudioCodec() const
+{
+	return m_aCodec;
+}
+const unsigned char *WebMDemuxer::getAudioExtradata(size_t &size) const
+{
+	return m_audioTrack->GetCodecPrivate(size);
+}
+double WebMDemuxer::getSampleRate() const
+{
+	return m_audioTrack->GetSamplingRate();
+}
+int WebMDemuxer::getChannels() const
+{
+	return m_audioTrack->GetChannels();
+}
+int WebMDemuxer::getAudioDepth() const
+{
+	return m_audioTrack->GetBitDepth();
+}
+
+bool WebMDemuxer::readFrame(WebMFrame *videoFrame, WebMFrame *audioFrame)
+{
+	const long videoTrackNumber = (videoFrame && m_videoTrack) ? m_videoTrack->GetNumber() : 0;
+	const long audioTrackNumber = (audioFrame && m_audioTrack) ? m_audioTrack->GetNumber() : 0;
+	bool blockEntryEOS = false;
+
+	if (videoFrame)
+		videoFrame->bufferSize = 0;
+	if (audioFrame)
+		audioFrame->bufferSize = 0;
+
+	if (videoTrackNumber == 0 && audioTrackNumber == 0)
+		return false;
+
+	if (m_eos)
+		return false;
+
+	if (!m_cluster)
+		m_cluster = m_segment->GetFirst();
+
+	do
+	{
+		bool getNewBlock = false;
+		long status = 0;
+		if (!m_blockEntry && !blockEntryEOS)
+		{
+			status = m_cluster->GetFirst(m_blockEntry);
+			getNewBlock = true;
+		}
+		else if (blockEntryEOS || m_blockEntry->EOS())
+		{
+			m_cluster = m_segment->GetNext(m_cluster);
+			if (!m_cluster || m_cluster->EOS())
+			{
+				m_eos = true;
+				return false;
+			}
+			status = m_cluster->GetFirst(m_blockEntry);
+			blockEntryEOS = false;
+			getNewBlock = true;
+		}
+		else if (!m_block || m_blockFrameIndex == m_block->GetFrameCount() || notSupportedTrackNumber(videoTrackNumber, audioTrackNumber))
+		{
+			status = m_cluster->GetNext(m_blockEntry, m_blockEntry);
+			if (!m_blockEntry  || m_blockEntry->EOS())
+			{
+				blockEntryEOS = true;
+				continue;
+			}
+			getNewBlock = true;
+		}
+		if (status || !m_blockEntry)
+			return false;
+		if (getNewBlock)
+		{
+			m_block = m_blockEntry->GetBlock();
+			m_blockFrameIndex = 0;
+		}
+	} while (blockEntryEOS || notSupportedTrackNumber(videoTrackNumber, audioTrackNumber));
+
+	WebMFrame *frame = NULL;
+
+	const long trackNumber = m_block->GetTrackNumber();
+	if (trackNumber == videoTrackNumber)
+		frame = videoFrame;
+	else if (trackNumber == audioTrackNumber)
+		frame = audioFrame;
+	else
+	{
+		//Should not be possible
+		assert(trackNumber == videoTrackNumber || trackNumber == audioTrackNumber);
+		return false;
+	}
+
+	const mkvparser::Block::Frame &blockFrame = m_block->GetFrame(m_blockFrameIndex++);
+	if (blockFrame.len > frame->bufferCapacity)
+	{
+		unsigned char *newBuff = (unsigned char *)realloc(frame->buffer, frame->bufferCapacity = blockFrame.len);
+		if (newBuff)
+			frame->buffer = newBuff;
+		else // Out of memory
+			return false;
+	}
+	frame->bufferSize = blockFrame.len;
+
+	frame->time = m_block->GetTime(m_cluster) / 1e9;
+	frame->key  = m_block->IsKey();
+
+	return !blockFrame.Read(m_reader, frame->buffer);
+}
+
+inline bool WebMDemuxer::notSupportedTrackNumber(long videoTrackNumber, long audioTrackNumber) const
+{
+	const long trackNumber = m_block->GetTrackNumber();
+	return (trackNumber != videoTrackNumber && trackNumber != audioTrackNumber);
+}

thirdparty/libsimplewebm/WebMDemuxer.hpp

@@ -0,0 +1,125 @@
+/*
+	MIT License
+
+	Copyright (c) 2016 Błażej Szczygieł
+
+	Permission is hereby granted, free of charge, to any person obtaining a copy
+	of this software and associated documentation files (the "Software"), to deal
+	in the Software without restriction, including without limitation the rights
+	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+	copies of the Software, and to permit persons to whom the Software is
+	furnished to do so, subject to the following conditions:
+
+	The above copyright notice and this permission notice shall be included in all
+	copies or substantial portions of the Software.
+
+	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+	SOFTWARE.
+*/
+
+#ifndef WEBMDEMUXER_HPP
+#define WEBMDEMUXER_HPP
+
+#include <stddef.h>
+
+namespace mkvparser {
+	class IMkvReader;
+	class Segment;
+	class Cluster;
+	class Block;
+	class BlockEntry;
+	class VideoTrack;
+	class AudioTrack;
+}
+
+class WebMFrame
+{
+	WebMFrame(const WebMFrame &);
+	void operator =(const WebMFrame &);
+public:
+	WebMFrame();
+	~WebMFrame();
+
+	inline bool isValid() const
+	{
+		return bufferSize > 0;
+	}
+
+	long bufferSize, bufferCapacity;
+	unsigned char *buffer;
+	double time;
+	bool key;
+};
+
+class WebMDemuxer
+{
+	WebMDemuxer(const WebMDemuxer &);
+	void operator =(const WebMDemuxer &);
+public:
+	enum VIDEO_CODEC
+	{
+		NO_VIDEO,
+		VIDEO_VP8,
+		VIDEO_VP9
+	};
+	enum AUDIO_CODEC
+	{
+		NO_AUDIO,
+		AUDIO_VORBIS,
+		AUDIO_OPUS
+	};
+
+	WebMDemuxer(mkvparser::IMkvReader *reader, int videoTrack = 0, int audioTrack = 0);
+	~WebMDemuxer();
+
+	inline bool isOpen() const
+	{
+		return m_isOpen;
+	}
+	inline bool isEOS() const
+	{
+		return m_eos;
+	}
+
+	double getLength() const;
+
+	VIDEO_CODEC getVideoCodec() const;
+	int getWidth() const;
+	int getHeight() const;
+
+	AUDIO_CODEC getAudioCodec() const;
+	const unsigned char *getAudioExtradata(size_t &size) const; // Needed for Vorbis
+	double getSampleRate() const;
+	int getChannels() const;
+	int getAudioDepth() const;
+
+	bool readFrame(WebMFrame *videoFrame, WebMFrame *audioFrame);
+
+private:
+	inline bool notSupportedTrackNumber(long videoTrackNumber, long audioTrackNumber) const;
+
+	mkvparser::IMkvReader *m_reader;
+	mkvparser::Segment *m_segment;
+
+	const mkvparser::Cluster *m_cluster;
+	const mkvparser::Block *m_block;
+	const mkvparser::BlockEntry *m_blockEntry;
+
+	int m_blockFrameIndex;
+
+	const mkvparser::VideoTrack *m_videoTrack;
+	VIDEO_CODEC m_vCodec;
+
+	const mkvparser::AudioTrack *m_audioTrack;
+	AUDIO_CODEC m_aCodec;
+
+	bool m_isOpen;
+	bool m_eos;
+};
+
+#endif // WEBMDEMUXER_HPP

thirdparty/libsimplewebm/libwebm/AUTHORS.TXT

@@ -0,0 +1,4 @@
+# Names should be added to this file like so:
+# Name or Organization <email address>
+
+Google Inc.

thirdparty/libsimplewebm/libwebm/LICENSE.TXT

@@ -0,0 +1,30 @@
+Copyright (c) 2010, Google Inc. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+  * Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+
+  * Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in
+    the documentation and/or other materials provided with the
+    distribution.
+
+  * Neither the name of Google nor the names of its contributors may
+    be used to endorse or promote products derived from this software
+    without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+

thirdparty/libsimplewebm/libwebm/PATENTS.TXT

@@ -0,0 +1,23 @@
+Additional IP Rights Grant (Patents)
+------------------------------------
+
+"These implementations" means the copyrightable works that implement the WebM
+codecs distributed by Google as part of the WebM Project.
+
+Google hereby grants to you a perpetual, worldwide, non-exclusive, no-charge,
+royalty-free, irrevocable (except as stated in this section) patent license to
+make, have made, use, offer to sell, sell, import, transfer, and otherwise
+run, modify and propagate the contents of these implementations of WebM, where
+such license applies only to those patent claims, both currently owned by
+Google and acquired in the future, licensable by Google that are necessarily
+infringed by these implementations of WebM. This grant does not include claims
+that would be infringed only as a consequence of further modification of these
+implementations. If you or your agent or exclusive licensee institute or order
+or agree to the institution of patent litigation or any other patent
+enforcement activity against any entity (including a cross-claim or
+counterclaim in a lawsuit) alleging that any of these implementations of WebM
+or any code incorporated within any of these implementations of WebM
+constitute direct or contributory patent infringement, or inducement of
+patent infringement, then any patent rights granted to you under this License
+for these implementations of WebM shall terminate as of the date such
+litigation is filed.

thirdparty/libsimplewebm/libwebm/README.libvpx

@@ -0,0 +1,11 @@
+URL: https://chromium.googlesource.com/webm/libwebm
+Version: 32d5ac49414a8914ec1e1f285f3f927c6e8ec29d
+License: BSD
+License File: LICENSE.txt
+
+Description:
+libwebm is used to handle WebM container I/O.
+
+Local Changes:
+* Removed: "mkvmuxer", "hdr_util", "file_util", "mkv_reader".
+* Make "~IMkvRerader()" public.

thirdparty/libsimplewebm/libwebm/common/webmids.h

@@ -0,0 +1,184 @@
+// Copyright (c) 2012 The WebM project authors. All Rights Reserved.
+//
+// Use of this source code is governed by a BSD-style license
+// that can be found in the LICENSE file in the root of the source
+// tree. An additional intellectual property rights grant can be found
+// in the file PATENTS.  All contributing project authors may
+// be found in the AUTHORS file in the root of the source tree.
+
+#ifndef COMMON_WEBMIDS_H_
+#define COMMON_WEBMIDS_H_
+
+namespace libwebm {
+
+enum MkvId {
+  kMkvEBML = 0x1A45DFA3,
+  kMkvEBMLVersion = 0x4286,
+  kMkvEBMLReadVersion = 0x42F7,
+  kMkvEBMLMaxIDLength = 0x42F2,
+  kMkvEBMLMaxSizeLength = 0x42F3,
+  kMkvDocType = 0x4282,
+  kMkvDocTypeVersion = 0x4287,
+  kMkvDocTypeReadVersion = 0x4285,
+  kMkvVoid = 0xEC,
+  kMkvSignatureSlot = 0x1B538667,
+  kMkvSignatureAlgo = 0x7E8A,
+  kMkvSignatureHash = 0x7E9A,
+  kMkvSignaturePublicKey = 0x7EA5,
+  kMkvSignature = 0x7EB5,
+  kMkvSignatureElements = 0x7E5B,
+  kMkvSignatureElementList = 0x7E7B,
+  kMkvSignedElement = 0x6532,
+  // segment
+  kMkvSegment = 0x18538067,
+  // Meta Seek Information
+  kMkvSeekHead = 0x114D9B74,
+  kMkvSeek = 0x4DBB,
+  kMkvSeekID = 0x53AB,
+  kMkvSeekPosition = 0x53AC,
+  // Segment Information
+  kMkvInfo = 0x1549A966,
+  kMkvTimecodeScale = 0x2AD7B1,
+  kMkvDuration = 0x4489,
+  kMkvDateUTC = 0x4461,
+  kMkvTitle = 0x7BA9,
+  kMkvMuxingApp = 0x4D80,
+  kMkvWritingApp = 0x5741,
+  // Cluster
+  kMkvCluster = 0x1F43B675,
+  kMkvTimecode = 0xE7,
+  kMkvPrevSize = 0xAB,
+  kMkvBlockGroup = 0xA0,
+  kMkvBlock = 0xA1,
+  kMkvBlockDuration = 0x9B,
+  kMkvReferenceBlock = 0xFB,
+  kMkvLaceNumber = 0xCC,
+  kMkvSimpleBlock = 0xA3,
+  kMkvBlockAdditions = 0x75A1,
+  kMkvBlockMore = 0xA6,
+  kMkvBlockAddID = 0xEE,
+  kMkvBlockAdditional = 0xA5,
+  kMkvDiscardPadding = 0x75A2,
+  // Track
+  kMkvTracks = 0x1654AE6B,
+  kMkvTrackEntry = 0xAE,
+  kMkvTrackNumber = 0xD7,
+  kMkvTrackUID = 0x73C5,
+  kMkvTrackType = 0x83,
+  kMkvFlagEnabled = 0xB9,
+  kMkvFlagDefault = 0x88,
+  kMkvFlagForced = 0x55AA,
+  kMkvFlagLacing = 0x9C,
+  kMkvDefaultDuration = 0x23E383,
+  kMkvMaxBlockAdditionID = 0x55EE,
+  kMkvName = 0x536E,
+  kMkvLanguage = 0x22B59C,
+  kMkvCodecID = 0x86,
+  kMkvCodecPrivate = 0x63A2,
+  kMkvCodecName = 0x258688,
+  kMkvCodecDelay = 0x56AA,
+  kMkvSeekPreRoll = 0x56BB,
+  // video
+  kMkvVideo = 0xE0,
+  kMkvFlagInterlaced = 0x9A,
+  kMkvStereoMode = 0x53B8,
+  kMkvAlphaMode = 0x53C0,
+  kMkvPixelWidth = 0xB0,
+  kMkvPixelHeight = 0xBA,
+  kMkvPixelCropBottom = 0x54AA,
+  kMkvPixelCropTop = 0x54BB,
+  kMkvPixelCropLeft = 0x54CC,
+  kMkvPixelCropRight = 0x54DD,
+  kMkvDisplayWidth = 0x54B0,
+  kMkvDisplayHeight = 0x54BA,
+  kMkvDisplayUnit = 0x54B2,
+  kMkvAspectRatioType = 0x54B3,
+  kMkvFrameRate = 0x2383E3,
+  // end video
+  // colour
+  kMkvColour = 0x55B0,
+  kMkvMatrixCoefficients = 0x55B1,
+  kMkvBitsPerChannel = 0x55B2,
+  kMkvChromaSubsamplingHorz = 0x55B3,
+  kMkvChromaSubsamplingVert = 0x55B4,
+  kMkvCbSubsamplingHorz = 0x55B5,
+  kMkvCbSubsamplingVert = 0x55B6,
+  kMkvChromaSitingHorz = 0x55B7,
+  kMkvChromaSitingVert = 0x55B8,
+  kMkvRange = 0x55B9,
+  kMkvTransferCharacteristics = 0x55BA,
+  kMkvPrimaries = 0x55BB,
+  kMkvMaxCLL = 0x55BC,
+  kMkvMaxFALL = 0x55BD,
+  // mastering metadata
+  kMkvMasteringMetadata = 0x55D0,
+  kMkvPrimaryRChromaticityX = 0x55D1,
+  kMkvPrimaryRChromaticityY = 0x55D2,
+  kMkvPrimaryGChromaticityX = 0x55D3,
+  kMkvPrimaryGChromaticityY = 0x55D4,
+  kMkvPrimaryBChromaticityX = 0x55D5,
+  kMkvPrimaryBChromaticityY = 0x55D6,
+  kMkvWhitePointChromaticityX = 0x55D7,
+  kMkvWhitePointChromaticityY = 0x55D8,
+  kMkvLuminanceMax = 0x55D9,
+  kMkvLuminanceMin = 0x55DA,
+  // end mastering metadata
+  // end colour
+  // audio
+  kMkvAudio = 0xE1,
+  kMkvSamplingFrequency = 0xB5,
+  kMkvOutputSamplingFrequency = 0x78B5,
+  kMkvChannels = 0x9F,
+  kMkvBitDepth = 0x6264,
+  // end audio
+  // ContentEncodings
+  kMkvContentEncodings = 0x6D80,
+  kMkvContentEncoding = 0x6240,
+  kMkvContentEncodingOrder = 0x5031,
+  kMkvContentEncodingScope = 0x5032,
+  kMkvContentEncodingType = 0x5033,
+  kMkvContentCompression = 0x5034,
+  kMkvContentCompAlgo = 0x4254,
+  kMkvContentCompSettings = 0x4255,
+  kMkvContentEncryption = 0x5035,
+  kMkvContentEncAlgo = 0x47E1,
+  kMkvContentEncKeyID = 0x47E2,
+  kMkvContentSignature = 0x47E3,
+  kMkvContentSigKeyID = 0x47E4,
+  kMkvContentSigAlgo = 0x47E5,
+  kMkvContentSigHashAlgo = 0x47E6,
+  kMkvContentEncAESSettings = 0x47E7,
+  kMkvAESSettingsCipherMode = 0x47E8,
+  kMkvAESSettingsCipherInitData = 0x47E9,
+  // end ContentEncodings
+  // Cueing Data
+  kMkvCues = 0x1C53BB6B,
+  kMkvCuePoint = 0xBB,
+  kMkvCueTime = 0xB3,
+  kMkvCueTrackPositions = 0xB7,
+  kMkvCueTrack = 0xF7,
+  kMkvCueClusterPosition = 0xF1,
+  kMkvCueBlockNumber = 0x5378,
+  // Chapters
+  kMkvChapters = 0x1043A770,
+  kMkvEditionEntry = 0x45B9,
+  kMkvChapterAtom = 0xB6,
+  kMkvChapterUID = 0x73C4,
+  kMkvChapterStringUID = 0x5654,
+  kMkvChapterTimeStart = 0x91,
+  kMkvChapterTimeEnd = 0x92,
+  kMkvChapterDisplay = 0x80,
+  kMkvChapString = 0x85,
+  kMkvChapLanguage = 0x437C,
+  kMkvChapCountry = 0x437E,
+  // Tags
+  kMkvTags = 0x1254C367,
+  kMkvTag = 0x7373,
+  kMkvSimpleTag = 0x67C8,
+  kMkvTagName = 0x45A3,
+  kMkvTagString = 0x4487
+};
+
+}  // namespace libwebm
+
+#endif  // COMMON_WEBMIDS_H_

thirdparty/libsimplewebm/libwebm/mkvmuxer/mkvmuxertypes.h

@@ -0,0 +1,28 @@
+// Copyright (c) 2012 The WebM project authors. All Rights Reserved.
+//
+// Use of this source code is governed by a BSD-style license
+// that can be found in the LICENSE file in the root of the source
+// tree. An additional intellectual property rights grant can be found
+// in the file PATENTS.  All contributing project authors may
+// be found in the AUTHORS file in the root of the source tree.
+
+#ifndef MKVMUXER_MKVMUXERTYPES_H_
+#define MKVMUXER_MKVMUXERTYPES_H_
+
+namespace mkvmuxer {
+typedef unsigned char uint8;
+typedef short int16;
+typedef int int32;
+typedef unsigned int uint32;
+typedef long long int64;
+typedef unsigned long long uint64;
+}  // namespace mkvmuxer
+
+// Copied from Chromium basictypes.h
+// A macro to disallow the copy constructor and operator= functions
+// This should be used in the private: declarations for a class
+#define LIBWEBM_DISALLOW_COPY_AND_ASSIGN(TypeName) \
+  TypeName(const TypeName&);                       \
+  void operator=(const TypeName&)
+
+#endif  // MKVMUXER_MKVMUXERTYPES_HPP_